| Re: [GMCnet] Bleeding Brakes... [message #95899] |
Sun, 15 August 2010 07:51  |
Gary Casey
Messages: 448
Registered: September 2009
Karma:
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Senior Member |
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Oops, I should have read the post from Bob before my previous post. My
description of function is correct, but as to whether the GMC has only the
hold-off function or has a true proportioning valve, I don't know.
Gary Casey
""Kelvin, it is truly a proportioning valve. The disc brakes on the front and
the drums on the rear have different initial pressure requirements and
different volumes required. These things have control orfices that are
carefully engineered and are different for each vehicle they are used on. I
can look up the specifics on that particular valve but suffice it to say you
"" no this is not the case here. In the GMC this is only a hold off valve not a
proportioning valve which looks very similar. You really need to do some
homework on this issue!
--
Bob de Kruyff
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